Chlorine Quantity for Pool Size

Chlorine Quantity for Pool Size Having sparkling, clean water is every pool owner’s dream. Using chlorine is one of the most crucial ways to kill bacteria, help remove algae, and destroy nonliving organisms like sweat, oils, and cosmetics. But just how much chlorine do you need? Leslie's has put together an easy to read chart that breaks this down by types of chlorine and pool size for normal maintenance. Here are a few tips before we dive into the chart:

    1. If you are using chlorine products as your primary sanitizer, we recommended to maintain a residual chlorine level of 2.0-4.0ppm to effectively kill bacteria and prevent algae.
    2. You may want to adjust the chlorine quantity depending upon the weather, seasonality, and your pool usage.
    3. Stop by your local Leslie’s store for a Free 9-Point Water Test or use a Water Test Kit. This will help you understand your pool’s current chemical conditions and more specifically what your current Free Chlorine level is.

Store Locator for Free Water Test

PRODUCT
APPLICATION
PER GAL OF POOL WATER
5 - 10K
10 - 15K
15 - 20K
20 - 25K
25 - 30K
Weekly
1 - 2 Tabs
2-3 Tabs
3 - 4 Tabs
4 - 5 Tabs
5 - 6 Tabs
Weekly
2 - 3 Oz
3 - 5 Oz
5 - 7 Oz
7 - 10 Oz
9-12 Oz
Weekly
6-12 Oz
12 Oz- 1 lb
1 - 1½ lb
1½ - 2 lb
2 lb
Weekly
1 - 2 Sticks
2 - 3 Sticks
3 - 4 Sticks
4 - 5 Sticks
5 - 6 Sticks
Leslie's Liquid Chlorine
(In-Stores Only)
Leslie's Liquid Chlorine
Weekly
½ - 1 Gal
1 - 1½ Gal
1½ - 2 Gal
2 - 2½ Gal
2½ - 3 Gal
Biweekly
½-1 Tab
1-1½ Tabs
1½ - 2 Tabs
2 - 2½ Tabs
2½ - 3 Tabs
Weekly
½-1 lb
1 - 1½ lb
1½ - 2 lb
2 - 2½ lb
2½ - 3 lb

This chart is used for normal chlorine maintenance, so remember to adjust your chlorine levels during the peak season or as often as needed. Always read labels and instructions when using your choice of chlorine product and any chemical feeders.
Chlorine Products Shop NowNow you know how much Chlorine you need! Still have questions?
Contact our friendly staff of pool and spa experts today
.